Tsunami1 - - Tsunami-2/8/08 o Also called seismic waves-not...

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- Tsunami---2/8/08 o Also called seismic waves—not tidal waves, nothing to do with tides o Japanese “tsu” port or harbor “nami” wave or sea o What is a Tsunami? Deeper water = much faster and shorter wave Normal waves = flow in circles Tsunamis = flows straight o What causes a tsunami? Disturbance that displaces water Earthquake generated Shallow EQ’s---ocean trench, causes a vertical disturbance Rigidity of rock controls amount slip Inland earthquakes can spawn Volcano Generated Exploding volcanic islands Underwater volcanic activity Landslide Generated Submarine landslides can trigger tsunami Meteorite generated
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Large impact from the surface 3-mile wide meteorite causes 300 foot waves o Biggest threat in pacific rim Pacific- seismic activity Atlantic coastal areas - less frequent
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Tsunami1 - - Tsunami-2/8/08 o Also called seismic waves-not...

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